You're basically paying all that money for a built-in GPS (but NOT the ueber-cool software!) and a thumbboard that isn't stellar. Since you already have a BT keyboard (which is actually usable for normal text-entry) and BT GPS receivers are almost given away for free with a loaf of bread, and keeping in mind that the layout of the N810 is vastly inferior to the N800 -- and even more so to the 770 --, I'd say: Keep your money, wait a couple of weeks and buy yourself a N800 with ITOS2008. But hey! don't listen to me...